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Nata [24]
2 years ago
5

In which of the following cases is an immune response not beneficial?

Biology
2 answers:
schepotkina [342]2 years ago
8 0
Organ transplant answer3
salantis [7]2 years ago
8 0
Organ transplant 3 because then the immune system will try to attack the new organ because it is a foreign body so to say
                              
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Through which microscope were cells first observed?
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Compound microscope

<h3>Further explanation</h3>

In 1665, Robert Hooke used a compound microscope to observe cells. Hooke observes the cell walls of dead plants (in the form of cork) when they appear under a microscope. He named it the cell because it looked similar to a cellula or small room inhabited by monks.

Development of microscopy:

  • 1590: Hans and Zacharias Janssen, as Dutch lens grinders, mounted two lenses in a tube to produce the first compound microscope.
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  • 1931: Ernst Ruska constructed the first electron microscope. With the invention of the electron microscope, many infectious agents smaller than bacteria could be seen.

Until now, we can see how important the use of microscopes, especially in microbiology, that is the study of microorganisms.

<h3>Learn more</h3>
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Keywords: compound microscope, Robert Hooke, cells first observed, cork, dead plant, walls, Anton van Leeuwenhoek

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